/*****************************************************************************
* ps.c: Program Stream demux module for VLC.
*****************************************************************************
- * Copyright (C) 2004 the VideoLAN team
+ * Copyright (C) 2004-2009 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
set_callbacks( OpenForce, Close )
add_shortcut( "ps" )
- add_bool( "ps-trust-timestamps", true, NULL, TIME_TEXT,
- TIME_LONGTEXT, true );
+ add_bool( "ps-trust-timestamps", true, TIME_TEXT,
+ TIME_LONGTEXT, true )
+ change_safe ()
add_submodule ()
set_description( N_("MPEG-PS demuxer") )
set_capability( "demux", 8 )
set_callbacks( Open, Close )
+ add_shortcut( "ps" )
vlc_module_end ()
/*****************************************************************************
int i_time_track;
int64_t i_current_pts;
+ int i_aob_mlp_count;
+
bool b_lost_sync;
bool b_have_pack;
bool b_seekable;
p_sys->i_length = -1;
p_sys->i_current_pts = (mtime_t) 0;
p_sys->i_time_track = -1;
+ p_sys->i_aob_mlp_count = 0;
p_sys->b_lost_sync = false;
p_sys->b_have_pack = false;
int64_t i_current_pos = -1, i_size = 0, i_end = 0;
int i;
- if( !var_CreateGetInteger( p_demux, "ps-trust-timestamps" ) )
+ if( !var_CreateGetBool( p_demux, "ps-trust-timestamps" ) )
return;
if( p_sys->i_length == -1 ) /* First time */
default:
if( (i_id = ps_pkt_id( p_pkt )) >= 0xc0 )
{
+ /* Small heuristic to improve MLP detection from AOB */
+ if( i_id == 0xa001 &&
+ p_sys->i_aob_mlp_count < 500 )
+ {
+ p_sys->i_aob_mlp_count++;
+ }
+ else if( i_id == 0xbda1 &&
+ p_sys->i_aob_mlp_count > 0 )
+ {
+ p_sys->i_aob_mlp_count--;
+ i_id = 0xa001;
+ }
+
bool b_new = false;
ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
/* The popular VCD/SVCD subtitling WinSubMux does not
* renumber the SCRs when merging subtitles into the PES */
if( tk->b_seen &&
- ( tk->fmt.i_codec == VLC_FOURCC('o','g','t',' ') ||
- tk->fmt.i_codec == VLC_FOURCC('c','v','d',' ') ) )
+ ( tk->fmt.i_codec == VLC_CODEC_OGT ||
+ tk->fmt.i_codec == VLC_CODEC_CVD ) )
{
p_sys->i_scr = -1;
}
- if( p_sys->i_scr > 0 )
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_scr );
+ if( p_sys->i_scr >= 0 )
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_scr );
p_sys->i_scr = -1;
if( tk->b_seen && tk->es &&
(
#ifdef ZVBI_COMPILED /* FIXME!! */
- tk->fmt.i_codec == VLC_FOURCC('t','e','l','x') ||
+ tk->fmt.i_codec == VLC_CODEC_TELETEXT ||
#endif
!ps_pkt_parse_pes( p_pkt, tk->i_skip ) ) )
{
if( !b_new && !p_sys->b_have_pack &&
(tk->fmt.i_cat == AUDIO_ES) &&
- (p_pkt->i_pts > 0) )
+ (p_pkt->i_pts > VLC_TS_INVALID) )
{
/* A hack to sync the A/V on PES files. */
msg_Dbg( p_demux, "force SCR: %"PRId64, p_pkt->i_pts );
i64 = stream_Size( p_demux->s );
if( i64 > 0 )
{
- *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
+ double current = stream_Tell( p_demux->s );
+ *pf = current / (double)i64;
}
else
{
{
int64_t i_now = p_sys->i_current_pts - p_sys->tk[p_sys->i_time_track].i_first_pts;
int64_t i_pos = stream_Tell( p_demux->s );
- int64_t i_offset = i_pos / (i_now / 1000000) * ((i64 - i_now) / 1000000);
- stream_Seek( p_demux->s, i_pos + i_offset);
+ if( !i_now )
+ return i64 ? VLC_EGENERIC : VLC_SUCCESS;
+
+ p_sys->i_current_pts = 0;
+ i_pos *= (float)i64 / (float)i_now;
+ stream_Seek( p_demux->s, i_pos );
return VLC_SUCCESS;
}
return VLC_EGENERIC;
static block_t *ps_pkt_read( stream_t *s, uint32_t i_code )
{
const uint8_t *p_peek;
- int i_peek = stream_Peek( s, &p_peek, 14 );
- int i_size;
- VLC_UNUSED(i_code);
+ int i_peek = stream_Peek( s, &p_peek, 14 );
+ if( i_peek < 4 )
+ return NULL;
- /* Smallest valid packet */
- if( i_peek < 6 ) return NULL;
-
- i_size = ps_pkt_size( p_peek, i_peek );
-
- if( i_size < 0 || ( i_size <= 6 && p_peek[3] > 0xba ) )
+ int i_size = ps_pkt_size( p_peek, i_peek );
+ if( i_size <= 6 && p_peek[3] > 0xba )
{
/* Special case, search the next start code */
i_size = 6;
return stream_Block( s, i_size );
}
+ VLC_UNUSED(i_code);
return NULL;
}